Cristal® Xtra Bold Ball Pen is the smoothest and boldest Cristal® ever, featuring a 1.6 mm ball point for extra smooth and extra bold writing! Black, blue, red and green feature Easy-Glide System®, BIC's exclusive ink system technology, for smoother writing and a more vivid line. The translucent smoked barrel offers easy and convenient ink-supply viewing. Available in black, blue, red, green, pink, purple, lime green and turquoise. Non-refillable.